Of course it's hard to know what you expect from a 4" f/9 achromat and also hard to know what you saw, but it is impossible for such a scope not to have a considerable amount of color around bright objects. A *much* longer achromat will have almost no color, but it will need a much bigger mount and be less portable. Everyone should realize that this scope will show a fair amount of color, but the optics are good quality.